86677890 has 64 divisors (see below), whose sum is σ = 226195200. Its totient is φ = 21129984.

The previous prime is 86677873. The next prime is 86677933. The reversal of 86677890 is 9877668.

It is a happy number.

It is a super-2 number, since 2×86677890² = 15026113229704200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41491 + ... + 43529.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^86677890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86677890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113097600).

86677890 is an abundant number, since it is smaller than the sum of its proper divisors (139517310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86677890 is a wasteful number, since it uses less digits than its factorization.

86677890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 86677890 is about 9310.0961326938. The cubic root of 86677890 is about 442.5572334920.

The spelling of 86677890 in words is "eighty-six million, six hundred seventy-seven thousand, eight hundred ninety".